Hello, I had a previous tread about no oil pressure/bad lifters now I have too much on startup. I am having a problem when engine is cold. I installed a mechanical gauge and have over 100 psi on the oil pressure upon startup and after reaching operating temp it carries about 18 lbs. I have been using a Fram oil filter and if I don't let it warm up the o-ring on the filter will push out. Any ideas??? Maybe an IH filter???? Possibly the internal relief valve in the pump is bad.
Thanks, Roger

 

The oil pressure regulator is in the rear oil cooler header.
The filter bypass is also in the rear oil cooler header.

Fram filters are not very good filters.
I run a Fleetguard oil and fuel filter on mine, NAPA or Ford should have them.

 

Thanks Dave, I am guessing that this is servicable. I will take a look at it tomorrow.

Roger

 

hey roger,

Glad the thing is running, I have only used the motorcraft filters in my truck. I have not had good luck with the frams as of late. I cut one open for my 02 sonata. the thing is mostly cheap cardboard and what looks like hot glue that my wife uses on her home crafts.

Dave, what is the right oil pressure for the 6.9/7.3 engines? are the oil pressure regulator know to go bad? I am assuming it does the same thing as a fuel pressure regulator? correct. Do you think the transmission fluid he ran in it before ate-up the internals of the regulator? maybe?

v/r
John

 

The regulator is not serviceable, it is staked into the header.
I tried to remove one and wound up ruining the regulator on an extra oil cooler I had.
Then I went to Ford and ordered another one E4TZ-6881-B.
List price for the filter adapter is 352.53 and does not include the oil cooler O rings or gaskets.

If you call International and ask what the normal oil pressure should be, somewhere between 3 PSI and 80 PSI is the answer you will get.
I am running 40 PSI on my engine at anything over 1000 RPM. Where I am concerned is hot idle right after driving is only about 3 PSI. 3 inutes later hot idle is 10 PSI.
I have had this same oil pressure with four different turbo equiped 6.9 and 7.3 engines, and three different oil coolers on this 6.9 turbo engine, so I am attributing the oil pressure to the extra oil going through the turbo at hot idle.
Dropping that low on a fresh rebuilt engine does concern me, but everything inside the engine was replaced. After changing the oil cooler three times, one of which was a new rear header, I am not going to worry about it anymore. I am going to switch back to synthetic oil at my next oil change since the initial engine break in period will be over.

As far as the transmission fluid goes, there is nothing in the regulator except metal parts from what I can see. Since I do have one that is trashed I am going to cut it apart, but I have not done this yet.

I also noticed the spring pressure on the new adapter regulator was much stronger on the new one than it was on the old ones, but the oil pressure was still the same.

 

I always used the international oil fillter on my 91 that I used to have. BTW I always got the filter for the PS and not the IDI because it was larger capacity and hey isn't bigger always better.

 

Cold oil pressure can be higher of course........the hot idle oil pressure is not less than 10psi and the hot oil at 2500-3000rpm should be between 40-70 psi. Our oil pumps do volume of oil not necessarily just pressure.

 

Just wanted to let you know that I did finally replace the oil cooler header and the relief valve was stuck. The new header repaired the problem and working fine. Thanks again!

 

So the powerstroke filters will fit the IDI? I didn't know that. If they're larger then I would think it'd be better and I always try to run larger if I can. Does anyone know of any drawbacks or problems running a PS filter on an IDI?

Rluckey, how much did that cost you?

 

Currently on site my brother in law and I have 6 IDI's not one of them have the same oil pressure. I am sure it is the gauges. My winter ride if it idles a long time has lower oil pressure but after a good run and the oil going through the by-pass and coolers pressure is real good. This one crew cab we came across 280,000+ miles on her wow best oil pressure I have seen runs like new starts better than any of the rest of them we have. Big old boat F-350 Crew 4x4 like driving a semi!

 

The only drawback I can see about useing a FL1995 powerstroke filter on a IDI is that you have to buy one more quart of oil..

 

First, rlucky1, would you consider parting with the old header? I need one to try and modify for adjustable tension on the relief spring. I would be happy to kick you some bucks and also cover shipping.
My engine has all clearance specs right on the lowside, and the oil pressure with delo15-40 is 50 on cold start 15 at hot idle, 40 anything above idle, I think the spring weakens with age and heat. I would like to see 60 hot running down the road but if it only makes 40 so be it, but I want to try to make an adjustable regulator. I removed mine with a puller i made and smoothed it up, then staked it back in, they do create a ridge and stick after time. I have a guy who can make parts if there is a need. And i can get springs made cheap.
And i run a ps oil filter, twice the size of the regular, more is better right
let me know
russ

 

There are differences in oil pressure readings depending on where you install the sender. One guy stated that he moved his sender to 3 different locations, and got a variation of over 10 lbs between the three locations.

Typefour, keep us updated on any results with the relief valve experiments.

Not only does the PSD filter hold 1 extra quart, it has finer filter media, to keep the turbo happy.

 

Are there any aftermarket oil coolers for out IDIs? I have seen some that run a cooler line to the front of the radiator but can you do that with an IDI? I am thinking of splicing in a cooler between the pan and turbo oil sending lines, would that make any kind of improvement? Any drawbacks you guys can think of?

 

Before I forget to ask, how would you install a seperate mechanical oil pressure gauge? I found a set of 3 gauges for $20 at Walmart that I might consider buying if I know it will work.